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    Internal voltage generator and contactless IC card including the same
    1.
    发明授权
    Internal voltage generator and contactless IC card including the same 有权
    内部电压发生器和非接触式IC卡包括相同

    公开(公告)号：US09354646B2

    公开(公告)日：2016-05-31

    申请号：US14198803

    申请日：2014-03-06

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Jun-Ho Kim ,  Il-Jong Song ,  Jong-Pil Cho

    IPC: G05F1/10 ,  G05F1/46 ,  G05F1/563 ,  G05F1/614

    CPC classification number: G05F1/468 ,  G05F1/563 ,  G05F1/614

    Abstract: A voltage generator of a contactless integrated circuit (IC) card includes a regulator configured to generate a first internal voltage based on an input voltage and a first reference voltage, the input voltage being received through an antenna of the contactless IC card. The voltage generator includes an internal voltage generator configured to generate a second internal voltage, the second internal voltage being used to operate an internal circuit of the contactless IC card. The voltage generator includes a reference voltage generator configured to generate a second reference voltage based on the first internal voltage, the second reference voltage being generated without regard to a fluctuation component of the first internal voltage. The voltage generator includes a switching unit configured to provide one of the first and second internal voltages as the first reference voltage in response to first and second switching control signals.

    Abstract translation: 非接触集成电路（IC）卡的电压发生器包括：调节器，被配置为基于输入电压和第一参考电压产生第一内部电压，所述输入电压通过非接触式IC卡的天线接收。 电压发生器包括被配置为产生第二内部电压的内部电压发生器，第二内部电压用于操作非接触式IC卡的内部电路。 电压发生器包括参考电压发生器，其被配置为基于第一内部电压产生第二参考电压，第二参考电压被产生而不考虑第一内部电压的波动分量。 电压发生器包括：开关单元，被配置为响应于第一和第二开关控制信号，提供第一和第二内部电压中的一个作为第一参考电压。

    Demodulator for near field communication, near field communication device, and electronic device having the same
    2.
    发明授权
    Demodulator for near field communication, near field communication device, and electronic device having the same 有权

    公开(公告)号：US09634729B2

    公开(公告)日：2017-04-25

    申请号：US15184314

    申请日：2016-06-16

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jun-Ho Kim ,  Young-Joo Lee ,  Jong-Pil Cho ,  Jin-Woo Kim

    IPC: H04B5/00 ,  H04B7/00 ,  H04L27/06 ,  H04B1/16

    CPC classification number: H04B5/0031 ,  H04B1/16 ,  H04L27/06

    Abstract: A demodulator for a near field communication (NFC) includes a first rectifier, a shifting rectifier, a field monitor and an edge detector. The first rectifier receives an antenna voltage through a first power terminal and a second power terminal, rectifies the antenna voltage and provides a first rectified signal to a first node. The shifting rectifier is enabled in response to an enable signal, receives the antenna voltage through the first power terminal and the second power terminal, increases a direct current (DC) level of the antenna voltage, rectifies the increased DC-level antenna voltage and provides a shifted rectified signal to the first node. The field monitor receives the antenna voltage through the first power terminal and the second power terminal, monitors a magnitude of the antenna voltage and generates the enable signal which is activated when the magnitude is smaller than a reference value.

    NFC terminal and communication device including the same
    3.
    发明授权
    NFC terminal and communication device including the same 有权
    NFC终端和通信设备包括相同

    公开(公告)号：US09379786B2

    公开(公告)日：2016-06-28

    申请号：US14584162

    申请日：2014-12-29

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jong-Pil Cho ,  Il-Jong Song

    IPC: H04B5/00 ,  H04B5/02

    CPC classification number: H04B5/02 ,  H04B5/0031 ,  H04B5/0056

    Abstract: A near field communication (NFC) terminal includes a first signal generator configured to generate a first received signal using a radio frequency (RF) signal received through an antenna, and generate a reduced first received signal by reducing a size of the first received signal when the size of the first received signal is equal to or greater than a predetermined RF value. The NFC terminal further includes a second signal generator configured to generate a second received signal using the RF signal. The NFC terminal further includes an operation unit configured to generate an operation signal by performing an operation on the reduced first received signal and the second received signal, and transmit the operation signal to a demodulator.

    Abstract translation: 近场通信（NFC）终端包括：第一信号发生器，被配置为使用通过天线接收的射频（RF）信号来产生第一接收信号，并且通过减小第一接收信号来减小第一接收信号的大小， 第一接收信号的大小等于或大于预定的RF值。 NFC终端还包括被配置为使用RF信号产生第二接收信号的第二信号发生器。 NFC终端还包括：操作单元，被配置为通过对减少的第一接收信号和第二接收信号执行操作来产生操作信号，并将操作信号发送到解调器。

    Smart card clock generator circuits wth autonomous operation capability and method of operating the same
    6.
    发明授权
    Smart card clock generator circuits wth autonomous operation capability and method of operating the same 有权
    智能卡时钟发生器电路具有自主操作能力和操作方法

    公开(公告)号：US08836388B2

    公开(公告)日：2014-09-16

    申请号：US13834628

    申请日：2013-03-15

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Sang-Hyo Lee ,  Il-Jong Song ,  Jong-Pil Cho

    IPC: H03L7/06 ,  H03L7/08

    CPC classification number: H03L7/08 ,  H03L7/145

    Abstract: An apparatus includes a reference clock signal generator circuit configured to generate a reference clock signal in response to a carrier signal and a clock selection signal generator circuit configured to generate a clock selection signal in response to the carrier signal. The apparatus further includes a multiplexer (MUX) circuit configured to selectively output the reference clock signal and a PLL output clock signal in response to the clock selection signal and a phase-locked loop (PLL) circuit configured to receive the selectively output signal between the reference clock signal and the PLL output clock signal at a reference input thereof and to generate the PLL output clock signal therefrom. An ISO 14443 type A smart card may include such apparatus.

    Abstract translation: 一种装置包括：参考时钟信号发生器电路，被配置为响应于载波信号产生参考时钟信号;以及时钟选择信号发生器电路，被配置为响应于载波信号产生时钟选择信号。 该装置还包括多路复用器（MUX）电路，其被配置为响应于时钟选择信号选择性地输出参考时钟信号和PLL输出时钟信号;以及锁相环（PLL）电路，被配置为接收选择性地输出信号 参考时钟信号和PLL输出时钟信号，并从其产生PLL输出时钟信号。 ISO 14443 A型智能卡可以包括这样的装置。

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